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Adaptive optics concept for multi-object 3D spectroscopy on ELTs

Published online by Cambridge University Press:  17 May 2006

B. Neichel
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: [email protected] ONERA, BP 72, 92322 Chatillon Cedex, France
T. Fusco
Affiliation:
ONERA, BP 72, 92322 Chatillon Cedex, France
M. Puech
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: [email protected]
J-M. Conan
Affiliation:
ONERA, BP 72, 92322 Chatillon Cedex, France
M. Le Louarn
Affiliation:
ESO-European Southern Observatory, Karl-Schwarzschild-Straße 2, Garching, D-85748 Germany
E. Gendron
Affiliation:
LESIA, Observatoire de Paris, 5 Place Jules Janssen 92195 Meudon, France
F. Hammer
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: [email protected]
G. Rousset
Affiliation:
LESIA, Observatoire de Paris, 5 Place Jules Janssen 92195 Meudon, France
P. Jagourel
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: [email protected]
P. Bouchet
Affiliation:
GEPI, Observatoire de Paris-Meudon, 5 Place Jules Janssen 92195 Meudon, France email: [email protected]
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Abstract

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In this paper, we present a first comparison of different Adaptive Optics (AO) concepts to reach a given scientific specification for 3D spectroscopy on Extremely Large Telescope (ELT). We consider that a range of 30%–50% of Ensquarred Energy (EE) in H band (1.65$\mu$m) and in an aperture size from 25 to 100mas is representative of the scientific requirements. From these preliminary choices, different kinds of AO concepts are investigated: Ground Layer Adaptive Optics (GLAO), Multi-Object AO (MOAO) and Laser Guide Stars AO (LGS). Using Fourier based simulations we study the performance of these AO systems depending on the telescope diameter.

Type
Contributed Papers
Copyright
2006 International Astronomical Union